Water-heater.



PATENTED 001?. 1, 1907.

W. P. COSPER. WATER HEATER.

I APPLIOATION FILED JUNE 6, 1905.

a sums-sum 1.

W11 ESEEE No.867,480. T PATENTED 0011,1907. W. P. GOSPBR.

WATER HEATER.

APPLICATION FILED JUNE 5, 1905.

3 SHEETS-SHEET 2.

W 11.1: \EEEEEE' N07 867,480. PATENT-3D OCT. 1, 1907.

W. P. GOSPER.

WATER HEATER.

APPLICATION FILED JUNE 5, 1905 \AAIJIW 55555 3 SHEETS-SHEET 3.

WILLIAM P. COSPER, vOF CHICAGO, ILLINOIS.

WATER-HEATER.

Specification of Letters Patent.

Patented Oct. 1,5;907.

Application filed June 5,1905. Serial No- 263,707.

To all whom it may concern:

lie it known that I, WittrAM I. Cosme, a citizen of the United States, and a resident of the city of Chicago, in the county of (ook and State of Illinois, have in vented certain new and useful Improvements in Water-Heaters; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in water heaters and more particularly to a water heater adapted for heating passenger cars though obviously it is equally adaptable for heating any other compartment or cornpartments in which a system of radiating pipes is employed. Often in devices of this class, especially where the system of circulation is'of considerable length, much difficulty has been encountered in pro curing sufficiently rapid circulation of the water to prevent its becoming unduly -cooled while passing through the radiating pipes and consequently decreas ing the elliciency of. the system.

The object of this invention is to provide a heater adapted to constantly keep the water at a high temperature and by means of the rapid flow of water through the same to draw the water through the radiating pipes at a suflicientlyhigh speed to prevent any considerable fall of temperature while traversing the system, thereby maintaining the car or other compartment with which it is connected at an approximately even temperature throughout.

A further object'oi the invention is to provide a cheap and simple device by means of which the water may be heated to a high temperature with the expenditure of a minimum amount of time and fuel.

The invention consists in the matters hereinafter described and more fully pointed opt and defined in the appended claims.

In the drawings, Figure l is a fragmentary side elevation, partly broken, of a device embodying my invention. Fig. 2 is a section aken on line 22 of Fig. 1. Fig. 3 is a top plan view of the heater. Fig. 4 is a side elevation. partly broken, of a modification embodying my invention. Fig. 5 is a side elevation of a devi e embodying my invention and connected with a plurality of circulating systems.

As shown in said drawings, A. represents a furnace or stove of any usual or preferred construction such as is usually employed in hot water heating systemsof this class, and in which, above the grate a, is supported the heating coil in any desired manner. Said coil B as shown more clearly in Figs. 1 and 2 comprises two' or any'number of copper or iron pipes, which as shown term a conical coil though said pipes need not neces- 'sarily be coiled in the stoye. Said pipes at the base of the coil project through the wall of the stove and the ends bb thereof are connected by suitable connections with the supply pipes b -b which open at their upper ends through the bottom of the expansion tank C, at one end thereof. Said expansion tank is supported above the stove by any desired means and may be of any usual or preferred construction.

The upper ends b b of the coil open through the side or top of the stove and are connected by means of pipes b -b with the pipe fitting or joint I) the upper portion of which as shown is of greater diameter than the lower portion thereof. A return pipe 13 is connected in the upper end of said fitting and extends upwardly therefrom through the bottom oi the expansion tank C to a point within the tank above the normal level of the water contained therein.

The inlet end b of the radiating pipe 13 connects in the end of the tank adjacent the pipe B and leads through the compartment to be heated in any desired manner, and the return end thereof b is connected in the lower or restricted end 0 said fittings b, forming a continuation of the pipe I? As shown said pipe B is of approximately the same cross sectional area as the combined cross sectional areas of the pipes b and b -b and is adapted to carry back to the tank, both, the water which flows through the heating coil B, and through the radiating pipe or coil 13*.

If preferred the water returning from the radiating pipe may also be made to pass through the stove, as is shown more'clearly in Fig. 4, in which case the stove D is provided with a coil D having feed pipes zZ-wl and outlet pipes dd as before described, and the return end a ofthe radiating pipe E passes through the wall of the stove and is coiled with the heating coil D to get the direct action of the heat of the stove, and after passing out of the stove at the upper end of the coil is connected with the fitting b as before described:

The heater maybe used with one system of radiating pipes as shown in Fig. 1 to 4 inclusive or if preferred with a plurality of systems as shown in Fig. 5 in which case an expansion tank for each system, indicated respectively by F and F, is provided. The feed and discharge pipes f- 1 are connected therewith and With the heating" coil in the stove as before described. In thisinstance, however as shown, only one each of said pipes are used though obviously any desired number may be employed. Leading from one oi' said tanks as sho n F, is the radiating pipe G which extends along one side of the car or other compartmentand from the other of said tanks F, the radiating pipe ti extends along the other side of the car thereby heating each side of the car with a separate system and insuring a very uniform temperature, Said radiating pipes G and G are connected with the tanks and fittings 11 as before described with reference to the pipes 13" and E.

The operation is as follows: The stove or furnace Wllhfh may be of any preferred construction heats to 'with a circulating or expansion at high temperature the water in the heating coil which i normally filled with Water from the expansion tank above the stove. As the water becomes heated it rises in the coil and together with the steam geneiated therefrom passes through the discharge pipes from the coil and the return pipe B with great force into the tank thereby setting up a continuous current through the heating coil. The rapid discharge of water and steam through the pipe B tends to create a vacuum in the return end of the radiating pipe, which is connected therewith, thereby drawingthe water rapidly through said radiating pipe and maintaining an approximately even temperature therein. The loss of heat from the water resulting from passing through the radiating pipe is immediately regained While the water is passing through the pipe 13 and expansion tank before again entering said radiating pipe.

Owing to the discharge end oi the radiating pipe opening above the-water level of thze expansion tank,

back pressure from the water in the expansion tank, which would otherwise occur if the radiating pipe opened in said tank below the water level is prevented. Instead of this pressure a partial vacuum is created in the-discharge end of the radiating pipe which greatly 25 facilitates the circulation. By preventing the water after being forced into the expansion tank, flowing back into the discharge end of the radiating pipe, back pressure and water hammering is avoided.

In the device shown in Fig. 4, the return water from the radiating pipe E passes through the stove before entering the tank insuring its reaching a'maximum temperature before again entering the radiating pipe. When more. thanone radiating system is employed an expansion tank may be connected with each system and. with the heating coil, in which case a very uniform temperature can be maintained over an extended area with butslight consumption oi fuel.

While I have shown but two pipes in-the heating coil it is obvious that any preferred numberof pipes'may be employed and the shape of the coil may be varied, and

any construction or type of stove suitable for the purpose may be employed in connection therewith and I therefore do not wish to limit, in this invention other than as necessitated by the prior art and as stated in the claims as obviously many details of construction may be varied without departing from the principles of my invention.

I claim as my invention,

1. In a device of the class described the combination with it circulating or expansion tank of a radlatingpipe communicating therewii'brat one end below the water level and discharging above the normal water level in said tank at its oppositecnd and a heating coil opening from said tank below the water level and discharging into the return portion of thcrudiating pipe tending to create :1 vacuum in the return portion of the radiating pipe.

2. In a device of the class described the combination tank of a heating coll communicating [herein at its intake end, a radiating pipe or coil communicating at both ends with said tank and adapted to discharge above normal water level in the tank, the discharge end of the heating coil communicating with the discharge portion of the radiating pipe to augment the circulation therein.

'3; In a device of the class described the combination with a circulating orcxpunsion tank of a heating pipe or coll connected z t Tits intake end in the bottom thereof, a radiating pipe. or coil communicating at both ends with said tank and the returning end of the heating coil con semen tion therein. said return cud oi lhc radiatingpipc dis I charging above the normal wulcr lcvcl in the tank.

4. lhe combination with an expansion and supply tank of a radiating circuit or coil conucclcd at its culls lhcrcin and having its discharge cud opening nboro the water level in said tank, a hunting coll opening :it its lnluko end in said tank independently oi the rudluiiug coil and at its outer end communicating with the discharge portion oi the radiating coil or circuit uduplcd to heal: the woicr insaid coil and to force the same into the expansion chamber andv a source of boat to which the heating coil is exposed.

.5. In a heatlm, apparatus the combination with an expansion tank or chamber of a radiating pipe or coll having botlr ends opening therein, the discharge end opening above the water level in said tank, :1 hcating'coil having one end opening into the expansion tank and its discharge end opening upwardly into the discharge portion of the radiating pipe and adapted to create a partial vacuum in said pipe and to force the iiuld in the discharge pipe into the tank.

6. The combination with an expansion and supply tank of a radiating pipe communicating, at both ends therewith,-

one or more heating coils communicating with said tank at their intake ends, and with the return portion of the ends communicating with the return discharge portion of the radiating pipe at its point of enlargement and dl reeled obliquely toward thetank and means henting 'the coil. Sum a mud heating systemthe combination with u tank of a radiating circuit communicating therein, a heating cell having its intake end communicating with the tank and having the discharge end connecting obliquely in the return portion of the radiating circuit in the Iii-cc tion of ilow and acting to augment circulation, said discharge end of the radiating circuit extending above the hormai water level in said tuuknndmcrrns heating sold coil,"

In a fluid heating system the comhlnationnwllh u. radiating pipe of a heating coil, the discharge end thereof; communicating witirthe return portion.otthex radlutlng I pipefnn expansion-tank opening into the inlet ends of of the radiating pipe and adapted to create a vacuum in the discharge portion of said rudintlng pipe.

11. In a devlcc of the class described the combination with a heater of :in crpunsion tank above the some, :1'

radiating pipo communicating with said tank at both ends, with the discharge end thereof opening; above the normal water level, a heating coil connected in circuit with the radiating pipe and through which the iluld in the radiating pipe pussvs and a heating coil opening i'i'om the tank and mounmrnicnling with the discharge portion of the radiating pipe adapted to create a vacuum in the discharge cud oi the radiating pipe. 5

12. In a device of the class described the combination with an expansion look of a radiating coll communicating therewith and having its inlet end opening bclow the water level and its outlet end opening in the tank above the water level, menus for heating said coil and a heating coil communicating with the tank and dlscharge portion of the radiating coil adapted to facilitate the circulation in the radiating eoll. v 4

13. In a device of the class described the combination with an expansion tank of a; radiating pipe opening at its intake end below the water level in said tank and the discharge end thereof opening above the water level therein and a heating circuit commnnicating nt one end with the expansion tank and discharging upwardly into the discharge portion 0!! theradiating pipe and adopted to heat and force the circulating fluid into the tank.

14.111 :1 device of the class described the combination with an expansion tank of n radiating pipe opening therefrom and thereinio with its discharge end opening above the water level in said tank, a coil comnnmivutlng at one end with said tank and opening at its other end into the radiating pipe and adopted to heat the liquid in and accelernte the circulation through said radiating pipe and means for heating said coil.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

WILLIAM I. COSPER.

Wit nesses W. \V. \V 'rnnnnnnr, J. W. ANnnLL. 

